3Com 3C13755-US - Router 5642 Installation Manual page 78

76 C 6: M
HAPTER AINTAINING THE
Upgrading Application
Program and Boot ROM
through XModem
Protocol
R
OUTER
4 Clear application program password.
This option clears super user password. This option functions for only one time
and password authentication for super users is restored after the router is
rebooted.
5 Ignore configuration file and start up with initial configuration.
6 Enter debugging environment in case of faults.
7 Boot menu provides two methods for upgrading the program and the Boot ROM
sub-menu operations, which are introduced in the following subsections.
Options of Boot ROM operation menu include:
Boot ROM Download Menu:
1: Download Boot ROM with XModem
2: Download Extended Segment of Boot ROM with XModem
3: Restore Extended Segment of Boot ROM from FLASH
4: Backup Extended Segment of Boot ROM to FLASH
5: Exit to Main Menu
Enter your choice(1-5):
This menu provides options to upgrade, back up or restore Boot ROM program. .
CAUTION: It is recommended to upgrade the software under the guidance of the
technical support personnel. In addition, when upgrading the router, note to
match the version of the Boot ROM software with that of the main software.
When upgrading the software through the XModem protocol, you can simply use
the console port rather than building up another configuration environment.
Upgrading application program
1 Enter the Boot menu (refer to the1.1.1 Boot Menu), press <1> to select the
XModem protocol for downloading the application program. The following
download speeds are available for the router:
Downloading application program from serial ...
Please choose your download speed:
1: 9600 bps
2: 19200 bps
3: 38400 bps
4: 57600 bps
5: 115200 bps
6: Exit and reboot
Enter your choice(1-6):
2 Select an appropriate download speed. For example, enter <5> to select the
download speed 115200 bps and the router will prompt:
Download speed is 115200 bps. Change the terminal's speed to 115200
bps, and select XModem protocol. Press ENTER key when ready.
3 According to the above information, change the baud rate set at the console
terminal for keeping it in consistency with the selected software download baud
rate. After that, disconnect the terminal (that is [Dial-in/Disconnect]), reconnect it
(that is [Dial-in/Dialing]) and then press <Enter> to begin downloading. The system
will prompt: